RE: A switch somewhere, or bug? CORRECTION

Footnote:
Fifteen plus Fifteen is thirty.
Sixteen and Sixteen is thirty too.

-----Original Message-----
From: MRAB <[email protected]> 
Sent: Saturday, December 6, 2025 9:59 PM
To: [email protected]
Subject: Re: A switch somewhere, or bug? CORRECTION



On 07/12/2025 00:54, Thomas Passin wrote:
> On 12/6/2025 6:49 PM, Em wrote:
>> For at least the last 10 years. I have been using double click on the 
>> filename (or by shortcut) to use the program. It tracks the Insulin 
>> injections for me and creates/updates several text files. I have been 
>> using IDLE for editing on WIN10 computers.  No issues....
>>
>> When I copied the file to the new WIN11 computer and double-click on 
>> the filename, it fails without warning or explanation.  In WIN11, I 
>> can open the file with IDLE and use F5 to run it successfully.
>>
>> I was told to try "Open with Python" and it fails on both the WIN10 
>> and
>> WIN11 computers.  I do not see the option for this program to Run as 
>> Administrator on either computer.  I have seen/used Run as 
>> Administrator elsewhere on the WIN10 computer.
>>
>> I created a .py program with the lines of code:
>>
>> pause = input("Start")
>> Starter = open("HLY-LOG5.txt","w")
>> pause = input("End")
>>
>> and can follow all six of the techniques to run as mentioned above. 
>> Three situations, the program runs, and three have the program fail.
>> Exactly the
>> same results as with my medical program.
>>
>> Has my short, three line, program worked on your system?
>
> You should have sent this message to the group, not just me. Yes, your 
> program created the file but not when I double-clicked on the file 
> name.  As I explained in my last post, that's because in Windows 11 
> when double-clicking, the working directory is the system's Windows 
> directory, not the one your program is in. In Win 11, you don't have 
> access to it as an ordinary user.  Anyway even if you did, you don't 
> want to write your file there.
>
> There's a simple solution if you want to be able to launch by double 
> clicking the file.  Actually, there are at least four ways to go.
>
> 1. Run your program using a batch file.  in the batch file, cd to your 
> target directory before launching your program.  The batch file needs 
> to be somewhere on your path, or alternatively you can put a shortcut 
> to it on your desktop.
>
> If you don't know how to do any of those things, ask for help.
>
> 2. Make your Python program change directories to the target directory 
> before writing the file. I think someone already posted a code snippet 
> showing how to do that. If not, and you don't know how, ask for help.
>
> 3. Hard-code the full path to your target file.  Then it won't matter 
> what working directory is in effect.
>
> 4.Create a shortcut for your .py file on the desktop. Then open the 
> Properties dialog for the shortcut. In the "Shortcut" tab you can put 
> the desired working directory.  Now when you double click the 
> shortcut, it will open in the right directory.
>

So, is this a change from WIN10?
and is IDLE not affected by this change?

And what use is the following from MRAB:


I always find a script's location with `__file__`.

If "HLY-LOG5.txt" is in the same folder as the script, then its path is given by:

     from os.path import dirname, join

     log_path = join(dirname(__file__), "HLY-LOG5.txt")

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